1 files changed, 74 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_inode_buf.h b/fs/xfs/libxfs/xfs_inode_buf.h
new file mode 100644
index 000000000..ef5eaf33d
--- /dev/null
+++ b/fs/xfs/libxfs/xfs_inode_buf.h
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ */
+#ifndef	__XFS_INODE_BUF_H__
+#define	__XFS_INODE_BUF_H__
+
+struct xfs_inode;
+struct xfs_dinode;
+
+/*
+ * In memory representation of the XFS inode. This is held in the in-core struct
+ * xfs_inode and represents the current on disk values but the structure is not
+ * in on-disk format.  That is, this structure is always translated to on-disk
+ * format specific structures at the appropriate time.
+ */
+struct xfs_icdinode {
+	uint16_t	di_flushiter;	/* incremented on flush */
+	prid_t		di_projid;	/* owner's project id */
+	xfs_fsize_t	di_size;	/* number of bytes in file */
+	xfs_rfsblock_t	di_nblocks;	/* # of direct & btree blocks used */
+	xfs_extlen_t	di_extsize;	/* basic/minimum extent size for file */
+	uint8_t		di_forkoff;	/* attr fork offs, <<3 for 64b align */
+	uint32_t	di_dmevmask;	/* DMIG event mask */
+	uint16_t	di_dmstate;	/* DMIG state info */
+	uint16_t	di_flags;	/* random flags, XFS_DIFLAG_... */
+
+	uint64_t	di_flags2;	/* more random flags */
+	uint32_t	di_cowextsize;	/* basic cow extent size for file */
+
+	struct timespec64 di_crtime;	/* time created */
+};
+
+static inline bool xfs_icdinode_has_bigtime(const struct xfs_icdinode *icd)
+{
+	return icd->di_flags2 & XFS_DIFLAG2_BIGTIME;
+}
+
+/*
+ * Inode location information.  Stored in the inode and passed to
+ * xfs_imap_to_bp() to get a buffer and dinode for a given inode.
+ */
+struct xfs_imap {
+	xfs_daddr_t	im_blkno;	/* starting BB of inode chunk */
+	unsigned short	im_len;		/* length in BBs of inode chunk */
+	unsigned short	im_boffset;	/* inode offset in block in bytes */
+};
+
+int	xfs_imap_to_bp(struct xfs_mount *, struct xfs_trans *,
+		       struct xfs_imap *, struct xfs_dinode **,
+		       struct xfs_buf **, uint);
+void	xfs_dinode_calc_crc(struct xfs_mount *, struct xfs_dinode *);
+void	xfs_inode_to_disk(struct xfs_inode *ip, struct xfs_dinode *to,
+			  xfs_lsn_t lsn);
+int	xfs_inode_from_disk(struct xfs_inode *ip, struct xfs_dinode *from);
+
+xfs_failaddr_t xfs_dinode_verify(struct xfs_mount *mp, xfs_ino_t ino,
+			   struct xfs_dinode *dip);
+xfs_failaddr_t xfs_inode_validate_extsize(struct xfs_mount *mp,
+		uint32_t extsize, uint16_t mode, uint16_t flags);
+xfs_failaddr_t xfs_inode_validate_cowextsize(struct xfs_mount *mp,
+		uint32_t cowextsize, uint16_t mode, uint16_t flags,
+		uint64_t flags2);
+
+static inline uint64_t xfs_inode_encode_bigtime(struct timespec64 tv)
+{
+	return xfs_unix_to_bigtime(tv.tv_sec) * NSEC_PER_SEC + tv.tv_nsec;
+}
+
+struct timespec64 xfs_inode_from_disk_ts(struct xfs_dinode *dip,
+		const xfs_timestamp_t ts);
+
+#endif	/* __XFS_INODE_BUF_H__ */